1. (nautical) the forward edge of a fore-and-aft sail that is next to the mast
   "The sailor adjusted the luff of the mainsail to improve its shape"
    
2. The act of sailing close to the wind
   "The skilled captain performed a perfect luff to gain speed"

1. Sail close to the wind
   "The skilled sailor luffed the boat to gain speed";
   - point
    
2. Flap when the wind is blowing equally on both sides
   "the sails luffed"

Derived forms: luffed, luffing, luffs

Type of: edge, flap, roll, sail, sailing, undulate, wave

Part of: fore-and-aft sail

Encyclopedia: Luff, Peter